Grace H

Shower Curtain: Cosine


Equation: f(x)=2cos(x)
Domain: all real numbers
Range: [-2,2]
Discontinuities: none
Symmetry: Even
f(6)= 2cos(6)
=1.920
f(-6)=2cos(-6)
=1.920
End Behavior:
oscillates between 2 and -2 as x approaches infinity and negative infinity